TH400 Billet Steel Forward Drum and Heavy Duty Input Shaft

• Drum is machine from solid billet 4140 HTSR steel.
• Input Shaft machined from 300 Maraging.
• Shaft to Drum Spline count has been increased from 30 to 35 splines for extra contact and strength.
• Overall Drum & Input Shaft weight is 2.50 lbs lighter than the OEM drum & shaft with major weight reduction on the O.D.
• The Input Shaft is permanently located in the drum by a shoulder stop and snap ring.